What is the ion needed for the formation of the fertilization envelope Ca2+
Order of embryonic development Fertilization, Cleavage, Gastrulation, Organogenesis
Blastocyst human equivalent of the blastula
Blastomere Essential part of blastula formation
first two cleavage furrows in frogs...
GCU BIO-182 Exam 3 CH. 32, 33, 34, 40,
41, 42 & 47 Review Questions with
Correct Answers
What is the ion needed for the formation of the fertilization envelope ✅Ca2+
Order of embryonic development ✅Fertilization, Cleavage, Gastrulation,
Organogenesis
Blastocyst ✅human equivalent of the blastula
Blastomere ✅Essential part of blastula formation
first two cleavage furrows in frogs ✅4 equally sized blastomeres
Third Cleavage ✅Asymmetric forming unequally sized blastomeres
Gastrulation ✅Movement of cells from blastula surface to interior of embryo
germ layers ✅ectoderm, mesoderm, endoderm
Endoderm ✅innermost germ layer; develops into the linings of the digestive tract and
much of the respiratory system
Mesoderm ✅middle layer, partly fills space between endoderm and ectoderm
Ectoderm ✅the outer germ layer that develops into skin and nervous tissue
Extraembyonic membranes for land vertebrates ✅Chorion, Allantois, Amnion, and Yolk
Sac
Difference animal and fungal heterotrophy ✅Animals ingest the food
bilateral symmetry ✅Body plan in which only a single, imaginary line can divide the
body into two equal halves.
radial symmetry ✅Symmetry about a central axis.
Asymmetry ✅lack of symmetry
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